Got a friend that wants to get into MTBing. How's the Marz MZ-1 fork?

We're looking at the Iron Horse Warrier Expert from 06. The spec is pretty good with BB5 discs, SRAM X.7 drivetrain, and Truvativ forks with a sealed BB. But I don't know anything about the MZ-1 fork. Is it any good? How does it compare with the RS J1?